Hoisting apparatus.



No. 787,058. PATENTED APR. 11, 1905.

J. SPELMAN.

HOISTING APPARATUS.

APPLICATION FILED AUG. 8, 1904 4 SHEETS-SHEET 1.

Q ZMQ AZ E J Q 4% m No. 787,058. PATBNTED APR. 11. 1905.

J. SPELMAN.

HOISTING APPARATUS.

APPLIUATION FILED AUG. 8, 1904.

4 SHEETS-SHEET 2.

No. 787,058. PATBNTBD APR. 11, 1905. J. SPELMAN.

HOISTING APPARATUS. APPLICATION FILED AUG. 8, 1904.

4 SHEETS-SHEET 3.

1 J I L/ PATENTED APR. 11, 1905.

4 SHEETS-SHEET 4.

fim972277 J SPELMAN HOISTING APPARATUS.

APPLIOATION FILED AUG. 8, 1904.

Patented April 11, 1905.

'iUNiTen STAT S PATENT @FFICE.

JAMES SPELMAN, OF CHICAGO, ILLINOIS, ASSIGNOR TO J. S. MET JALF COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

HOlSTlNG APPARATUS.

SPECIFICATION forming part of Letters Patent NO. 787,058, dated April 11, 1905.

Application filed August 8 1904. Serial No. 219,929.

Be it known that I, Janus SPELMAN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in lloisting Apparatus, of which the following is a specilication.

This invention relates to an improven'ient in the elevator type of hoisting apparatus employed at structures undergoing erection for elevating to the points of use thereon the building material to be laid.

The particular purpose for which the present improvement is devised is that of use in erecting the walls of metal-rein forced concrete structures such as grain-bins, chimneys, tanks,and the like by filling the concrete into a mold supported on scati'olding and raising the mold as the wall structure progresses to enable the filling operation to be continued in it without interruption until the work of erection completed. This may be done with means for the purpose forming the subject of my application for Letters Patent, Serial No. 210,931), filed concurrently herewith on the 8th day of August; IQOI.

Obviously as the height of the wall undergoing erection increases the elevation to which 1.

to be lengthened as required with facility from 1 the base of the structure undergoing erection.

The hoisting apparatus is illustrated in the accompanying drawings with sufficient of the mechanism of the scatfoldingand mold thereon to be raised in the manner and for the purpose hereinbet'ore mentioned to enable the present improvement to be readily comprehended from the following detailed description thereof in the form in which it is used.

In the drawings, Figure l is a broken plan View of two grain-bins side by side of the I molded metal-reinforced concrete construcl scaffolding-sections are connected at vertical tion referred to undergoing erection and equipped with the improved hoisting apparatus. Fig. 2 is a broken view of the same in elevation: Fig. 3, a section taken at line 3 on Fig. 2 and viewed in the direction of the arrow; Fig. -t, an enlarged view in elevation, partly sectional, of the hoist-guide-cable holding and releasing device; Fig. 5, a section taken at the line 5 on Fig. I, viewed in the direction of the arrow and enlarged; Fig. I), an enlarged view in elevation of the overhead beam from which the hoist is suspended, showing the manner of supporting it adjustably; Fig. T, a broken plan section of the same; Fig. 8, a perspective view of an end bearing for the overhead beam; Fig. 9, a section taken at the line 2) on Fig. I0 and viewed in the direction of the arrow, and Fig. a section taken at the line l0 on Fig. 6 and viewed in the direction of the arrow.

A and B are respectively the outer and inner sections of a circular mold for forming the wall C of a cylindrical structure of concrete having vertical and circumferential metal bars (not shown) embedded in it in the ordinary or any desired manner. These moldsections are rigidly tied together at suitable intervals by frames I), each comprising a pair of vertical timbers a on the outer mold-section, a pair of similar timbers on the inner mold-section, and bolted between said timbers spacing-timbers c, with supplemental lilling-strips c, if required, for determining the width of space between the mold-sections for the thickness of wall C desired. Inside the mold is provided scatfolding, comprising an outer circumferential section I and an inner central section E, each section having legsd,

formed, preferably, as represented, by strips 1/ d, bolted flatwise together and standing on jack-screws F. T he legs of the outer scaffolding-section are joined to the frames I) at their timbers I). That timber of one frame on each of the two structures represented in the drawings as undergoing erection is shown to extend to a greater length than the other timbers, 1., for a purpose hereinafter explained, and is denoted as b. The legs of the central scaffolding also stand on jack-screws F. The two intervals by bars and from near the upper ends of the molds by tioor-beamsf', on which the working floor 1 is laid.

LII

Concrete is filled into the mold of each structure represented as undergoing erection to produce the wall G, and as the filling proceeds the jack-screws are operated at intervals or otherwise, as desired, to raise the scaffolding and the molds thereon to permit the filling to be performed continuously or without interruption for disintegrating and removing the molds after using them for producing sections of the walls undergoing construction and replacing them on the molded wall-sections after the latter have set, thereby saving the expense of erection incurred by delays incidental to such mold adjustments.

Materials used in the erection are hoisted for delivery to the workmen on the platform 9 to a platform g, provided on a level therewith between the two structures undergoing erection, from a platform provided between the two structures at their bases. The means employed for so hoisting the materials are elevators in the form of cars or platforms suspended on cables from overhead sheaves and guided between taut cables, the suspension-cables being paid out from and taken up upon rotary drums driven by suitable power, all in a usual or any suitable manner to lower and raise the elevators.

It will be realized that as the molds by raising them as and for the purpose described attain higher and higher elevations with the progress of the work of erection the elevators must ascend farther and farther to reach the working platform g and that corresponding lengthening of the guides for the elevators must be provided for. This provision constitutes the primary purpose of the improvement herein and is accomplished by the follow ing described construction relative to two similar structures undergoing erection, as shown.

A metal beam G is supported at its ends on coincident frames D of the molds of the two structures. This beam, as shown, is formed of two parallel channel-bars bolted together near their ends through their webs, as represented at h in Fig. 7, with sleeves it about the bolts spacing the bars apart. The higher timbers Z), upon the upper extremities of which the beam ends are supported and which are in pairs with the members spread apart, as shown in Figs. 9 and 10, have their opposing faces coincidently grooved for some distance downward from their upper ends to form a longitudinal cylindrical recess '5 Fig.

' 10. A metal block 2", formed with a central the said members.

longitudinal enlargement 6, containing a boltopening 2' lengthwise through it, is inserted between the members of the pair of frametimbers b with the enlargement 2" fitting the recess andis securely bolted in place through A plate is seats upon the upper end of the pair of timbers b and has on its upper surface near opposite edges rounded bearing-bosses is, and rising from that surface near the edges thereof at right angles to those adjacent to which the bosses are provided are vertical guide-posts The beam G rests upon the rounded bearing-bosses It" and is fastened in place by a bolt Z0 passing through the opening 2' below which the bolt-head aflords a stop, through an opening in line with the bolt in the plate 70 and between the channel-bars of the beam, above which the bolt is secured by a nut If, bearing against a Washer 70 interposed between the nut and bars.

Between the members of the beam G at opposite sides of its transverse center are journaled sheaves Z, from each of which is suspended an elevator H on a hoisting-cable Z, connected with any usual or suitable form of hoistingengine. (Not shown.) These elevators work through openings m and m, provided, respectively, in the platforms g and g Each elevator is guided between guidecables 02 n, fastened at their upper ends to the beam G and each passing at the platform g over suitable guide-pulley s, as shown, or otherwise to an adjustable holder I for maintaining the guide-cable yieldingly in its required taut condition and beyond which the cable is shown to be laid in a coil 12 under the lower platform. The holder I in the preferred form thereof illustrated comprises a bell-crank lever-0, fulcrumed at its angle on a suitable bearing 19, with a weight 0 on its longer arm and an eye 0 in its shorter arm, through which the guide-cable passes, and carries a stop 9, clamped upon it, to prevent the cable from being drawn back through the eye.

According to the arrangement represented the hoisting-engine raises one elevator to the platform cl while it lowers the other to the platform 9 to be loaded with the material to be carried up. When between trips of an elevator the upper platform has been raised by raising the molds, the guide-cables n will have been correspondingly raised by turning accordingly the bell-cranks of the holders I on their fulcrums until by continued raising of the molds the limit of so turning the bellcranks has been reached. Then the clampstops Q are loosened to permit the cables a to pay out to the desired extent, and the bellcranks are turned back to their initial positions represented and the clamps are refastened on the guide-cables to hold them subject to the tightening effect of the weighted bell-crank arms. guide-cable the bell-crank arm 0 is let down to rest the weight 0 upon a block r, and after the adjustment is made the prop-block is withdrawn to permit the arm to lower and take up any slack there may be in the cable.

The growth in height of the two structures represented is not liable to be uniform, so that if the hoist-carrying beam Gr were rig idly fixed on its end supports inequality in the In practice in adjusting aextent of raising the two molds would strain the hoistmechanism and mightmore seriously injure it. By supporting the beam at its ends in the manner shown and described it is rendered sufficiently yielding to compensate for any degree of inequality in the elevation of the two molds that is liable to occur.

It is usual to erectsimultaneously a plurality of the structures like those represented, either in line or in clusters, and for that reason the improved hoisting mechanism is illustrated in the drawings and hereinbefore described in detail in connection with two such structures undergoing erection. However, it is similarly applicable in the erection of a single structure, the only material difference being in the manner of supporting the hoist-carrying beam, which may then be rigidly fastened in position. The details of construction of the hoistaegulating mechanism may, moreover, be otherwise variously modified without departure from the invention, which is not, therefore, intended to be limited to such details.

"hat I claim as new, and desire to secure by Letters Patent. is*

I. In combination with a mold. for use in erecting a wall substantially as described and provided with means for raising it, hoisting apparatus carried by the mold, comprising an elevator suspended to be raised and lowered, vertical guides for the elevator, and yielding holding means for the guides, in which they are confined to retain them in taut condition, substantially as and for the purpose set forth.

2. In combination with a mold, for use in erecting a wall substantially as described and provided with means for raising it, hoisting apparatus carried by the mold, comprising an I elevator suspended to be raised and lowered, vertical guides for the elevator, and yielding holding means for the guides, in which they are adjustably confined to retain them in taut condition, substantially as and for the purpose set forth.

3. In combination with a mold, for use in erecting a wall substantially as described and provided with means for raising it, hoisting apparatus comprising a beam carried by the mold, an elevator suspended on the beam to be raised and lowered, vertical guides suspended on said beam, and holding means for the, guides in which they are ad ustably confined toward their free ends to retain them in taut condition, substantially as and for the purpose set forth.

7L. In combination with a mold, for use in erecting a wall substantially as described and provided with means for raising it, hoisting apparatus comprising a beam carried by the mold, an elevator suspended on the beam to be raised and lowered, vertical guides suspended on said beam, and yielding holding means for the guides, in which they are adjustably confined toward their freeends to retain them in taut condition, substantially as and for the purpose set forth.

In combination with a mold, for use in erecting a wall substai'itially as described and provided with means for raising it, hoisting apparatus comprising a beam carried by the mold, an elevator suspended on the beam to be raised and lowered, guide-cables suspended on said beam, and holders for said cables consisting of bell-crank levers fulcrumed on bearings and having their longer arms weighted and with the shorter arms of which said cables are connected toward their free ends, substantially as and for the purpose set forth.

6. In combination with a mold, for use in erecting a wall substantially as described and provided with means for raising it, hoisting apparatus comprising a beam carried by the mold, an elevator suspended on the beam to be raised and lowered, guide-cables suspended on said beam, and holders for said cables consisting of bell-crank levers fulcrumed on bearings and having their longer arms weighted and eyes in their shorter arm through which said cables pass, and clamping-stops on said cables adjacent to said shorter arms, substantially as and for the purpose set forth.

7. In combination with a pairof molds for use in erecting walls of structures close together substantially as described, and provided with means for raising the molds, hoisting apparatus comprising a beam yieldingly supported at its opposite ends on said molds, elevators suspended on the beam to be raised and lowered, guide-cables suspended on said beam, and yielding holding means for said cables, on which they are adjustablyconfined toward their free ends to retain them in taut condition, substantially as and for the purpose set forth.

b. In combination with a pair of molds, for use in erecting walls of structures close together si'ibstantialLv as described and provided with means for raising the molds, hoisting apparatus comprising a beam, rounded bearings on said molds for the opposite ends of said beam and with which said endsare yieldi ngly connected, elevators suspended on the beam to be raised and lowered, guide-cables suspended on said beam, and yielding holding means for said cables on which they are adjustably confined toward their free ends to retain them in taut condition, substantially as and for the purpose set forth.

JAMES SPELMAN.

In presence of L. IIEISLAR, "Ai/iiiii N. \ViNiuiiui. 

